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- 2026年01月06日
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上海益启生物科技有限公司
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文献和实验Protoplast Fusion in Saccharomyces cerevisiae
together using polyethylene glycol (PEG) and calcium ions (Ca2+ ), before being embedded in agar under appropriate selective conditions. Colonies of genetically stable hybrids are normally visible within 5–10 d at 25�C.
by the addition of polyethylene glycol and collected by centrifugation. The DNA pellet is resuspended in a buffer containing cesium chloride and ethidium bromide, which is loaded into polyallomer tubes and subjected to ultracentrifugation overnight. The ethidium
PCR引物设计和优化(PCR PRIMER DESIGN AND REACTION OPTIMISATION)
the amplification of high （G+C） templates （Smith et al., 1990）。 Polyethylene glycol （PEG） may be a useful additive when DNA template concentration is very low: it promotes macromolecular association by solvent exclusion, meaning the pol can find the DNA. cDNA PCR
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